“If you are on-campus find the nearest available room and lock the door. If you are on-campus, but locked outside a building, seek shelter off campus immediately. If you are not on campus, stay away,” the University authorities said in an e-mail around 9:20 am local time, as quoted by Komonews.

The university stressed this was not a drill.

Police searched the area for 30 minutes, but did not find anyone, according to Komo. The lockdown was subsequently lifted.